Interactive Periodic Table of the Elements |
|
Group 1
(IA) |
Group 2
(IIA) |
Group 3
(IIIB) |
Group 4
(IVB) |
Group 5
(VB) |
Group 6
(VIB) |
Group 7
(VIIB) |
Group 8
(VIIIB) |
Group 9
(VIIIB) |
Group 10
(VIIIB) |
Group 11
(IB) |
Group 12
(IIB) |
Group 13
(IIIA) |
Group 14
(IVA) |
Group 15
VA |
Group 16
(VIA) |
Group 17
(VIIA) |
Group 18
(VIIIA, 0) |
| Period 1 |
1
H
1.0
|
The top number is the element's atomic number, Z (the number of protons in the nucleus).
This letter (or letters) is the chemical symbol for the element.
The bottom number is the atomic mass, atomic weight, of the element.
|
2
He
4.0 |
| Period 2 |
3
Li
6.9 |
4
Be
9.0 |
|
5
B
10.8 |
6
C
12.0 |
7
N
14.0 |
8
O
16.0 |
9
F
19.0 |
10
Ne
20.2 |
| Period 3 |
11
Na
23.0 |
12
Mg
24.3 |
|
13
Al
27.0 |
14
Si
28.1 |
15
P
31.0 |
16
S
32.1 |
17
Cl
35.5 |
18
Ar
39.9 |
| Period 4 |
19
K
39.1 |
20
Ca
40.1 |
21
Sc
45.0 |
22
Ti
47.9 |
23
V
50.9 |
24
Cr
52.0 |
25
Mn
54.9 |
26
Fe
55.8 |
27
Co
58.9 |
28
Ni
58.7 |
29
Cu
63.5 |
30
Zn
65.4 |
31
Ga
69.7 |
32
Ge
72.6 |
33
As
74.9 |
34
Se
79.0 |
35
Br
79.9 |
36
Kr
83.8 |
| Period 5 |
37
Rb
85.5 |
38
Sr
87.6 |
39
Y
88.9 |
40
Zr
91.2 |
41
Nb
92.9 |
42
Mo
95.9 |
43
Tc
(99) |
44
Ru
101.1 |
45
Rh
102.9 |
46
Pd
106.4 |
47
Ag
107.9 |
48
Cd
112.4 |
49
In
114.8 |
50
Sn
118.7 |
51
Sb
121.8 |
52
Te
127.6 |
53
I
126.9 |
54
Xe
131.3 |
| Period 6 |
55
Cs
132.9 |
56
Ba
137.3 |
57
La
138.9 |
72
Hf
178.5 |
73
Ta
181.0 |
74
W
183.9 |
75
Re
186.2 |
76
Os
190.2 |
77
Ir
192.2 |
78
Pt
195.1 |
79
Au
197.0 |
80
Hg
200.6 |
81
Tl
204.4 |
82
Pb
207.2 |
83
Bi
209.0 |
84
Po
(210) |
85
At
(210) |
86
Rn
(222) |
| Period 7 |
87
Fr
(223) |
88
Ra
(226) |
89
Ac
(227) |
104
Rf
(261) |
105
Db
(262) |
106
Sg
(263) |
107
Bh
(262) |
108
Hs
(265) |
109
Mt
(266) |
110
Ds
(271) |
111
Rg
(272) |
112
Cn
|
|
|
|
|
|
|
| |
Lanthanides
(Lanthanoids) |
58
Ce
140.1 |
59
Pr
140.9 |
60
Nd
144.2 |
61
Pm
(147) |
62
Sm
150.4 |
63
Eu
152.0 |
64
Gd
157.3 |
65
Tb
158.9 |
66
Dy
162.5 |
67
Ho
164.9 |
68
Er
167.3 |
69
Tm
168.9 |
70
Yb
173.0 |
71
Lu
175.0 |
Actinides
(Actinoids) |
90
Th
232.0 |
91
Pa
(231) |
92
U
238.1 |
93
Np
(237) |
94
Pu
(244) |
95
Am
(243) |
96
Cm
(247) |
97
Bk
(247) |
98
Cf
(251) |
99
Es
(252) |
100
Fm
(257) |
101
Md
(258) |
102
No
(259) |
103
Lr
(260) |
|
| | |
AUS-e-TUTE Members Log-in to use Interactive Periodic Table.
|
|
|
|
to
Bookmark this site!